DE102004056505A1 - Device for temperature compensation in microwave-filter or microwave-oscillator, generates further magnetic field for superposing on first magnetic field - Google Patents
Device for temperature compensation in microwave-filter or microwave-oscillator, generates further magnetic field for superposing on first magnetic field Download PDFInfo
- Publication number
- DE102004056505A1 DE102004056505A1 DE200410056505 DE102004056505A DE102004056505A1 DE 102004056505 A1 DE102004056505 A1 DE 102004056505A1 DE 200410056505 DE200410056505 DE 200410056505 DE 102004056505 A DE102004056505 A DE 102004056505A DE 102004056505 A1 DE102004056505 A1 DE 102004056505A1
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- DE
- Germany
- Prior art keywords
- magnetic field
- microwave
- filter
- coils
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/02—Details
- H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/215—Frequency-selective devices, e.g. filters using ferromagnetic material
- H01P1/218—Frequency-selective devices, e.g. filters using ferromagnetic material the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Temperaturkompensation in einem Mikrowellen-Filter oder Mikrowellen-Oszillator gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a device for temperature compensation in a microwave filter or microwave oscillator according to the preamble of Claim 1.
Mikrowellen-Bandpaßfilter und Mikrowellen-Oszillatoren verfügen über zumindest ein ferrimagnetisches Element, welches vorzugsweise kugelförmig ausgebildet und beispielsweise aus einem Yttrium-Eisen-Granat (Yttrium-Iron-Garnet oder YIG) oder einem anderen ferrimagnetischen Material hergestellt ist. Die Resonatorwirkung wird mittels Kopplungsleitungen vermittelt.Microwave band-pass filter and microwave oscillators have at least one ferrimagnetic Element, which is preferably spherical and, for example from yttrium iron garnet (Yttrium Iron Garnet or YIG) or another ferrimagnetic material is made. The resonator effect is switched by means of coupling lines.
Ein
YIG-Bandpaßfilter
ist beispielsweise aus der Druckschrift
Nachteilig an dem aus der oben genannten Druckschrift bekannten YIG-Bandpaßfilter ist dabei insbesondere, daß keine Vorrichtungen oder Maßnahmen zur Kompensation von während des Betriebes des Filters auftretenden Temperatureffekten insbesondere durch die Veränderung des Polabstandes und die dadurch auftretende Verschiebung der Resonanzfrequenz vorgesehen sind. In der Folge treten unerwünschte Veränderungen in der Filtercharakteristik auf.adversely on the known from the above-mentioned document YIG bandpass filter is in particular, that no Devices or measures to compensate for during the operation of the filter occurring temperature effects in particular through the change the pole distance and the resulting shift of the resonance frequency are provided. As a result, undesirable changes in the filter characteristic occur on.
Aufgabe der vorliegenden Erfindung ist es demnach, eine Vorrichtung zur Kompensation temperaturbedingter Änderungen des Magnetfeldes durch Ausdehnung der Magnetkomponenten des Mikrowellen-Filters oder Mikrowellen-Oszillator zu schaffen.task It is therefore an object of the present invention to provide a device for Compensation of temperature-induced changes in the magnetic field by Extension of the magnetic components of the microwave filter or microwave oscillator to accomplish.
Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.The The object is solved by the features of claim 1.
Die Vorrichtung umfaßt dabei zusätzliche Magnetspulen, welche ein zusätzliches Magnetfeld erzeugen. Dadurch ist eine einfache, stufenlos einstellbare Anpassung des Gesamtfeldes an verschiedene Temperaturverhältnisse und eine Temperaturkompensation möglich.The Device includes while additional magnetic coils, which an additional Generate magnetic field. This is a simple, infinitely adjustable Adaptation of the total field to different temperature conditions and a temperature compensation possible.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung sind in den Unteransprüchen angegeben.advantageous Further developments of the device according to the invention are in the Subclaims specified.
Im Folgenden wird anhand der Zeichnung ein bevorzugtes Ausführungsbeispiel der Erfindung beispielhaft dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:in the The following is a preferred embodiment with reference to the drawing of the invention shown by way of example and in the following Description closer explained. Show it:
Das
Mikrowellen-Bandpaßfilter
Um
ein Magnetfeld erzeugen zu können, müssen die
Magnetjöcher
Erfindungsgemäß ist daher
vorgesehen, die durch die Temperatur bedingten Verstimmungen des Filters
Dies
erfolgt durch die Messung der Temperatur in Polnähe und die anschließende Regelung
des resultierenden Gesamt-Magnetfeldes
B0 + BT mit Hilfe
eines zusätzlichen
Magnetfeldes BT, welches, wie in
Das
zusätzliche
Magnetfeld BT ist dabei in die gleiche Richtung
wie das ursprüngliche
Magnetfeld B0 gerichtet und wirkt somit
additiv. Die Magnetspulen
Die
Erfindung ist nicht auf das dargestellte Ausführungsbeispiel begrenzt und
für beliebig
ausgestaltete Mikrowellen-Bandpaßfilter
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410056505 DE102004056505B4 (en) | 2004-11-23 | 2004-11-23 | Device for temperature compensation in a microwave filter or microwave oscillator with auxiliary coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410056505 DE102004056505B4 (en) | 2004-11-23 | 2004-11-23 | Device for temperature compensation in a microwave filter or microwave oscillator with auxiliary coil |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004056505A1 true DE102004056505A1 (en) | 2006-06-01 |
DE102004056505B4 DE102004056505B4 (en) | 2008-04-10 |
Family
ID=36371180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410056505 Active DE102004056505B4 (en) | 2004-11-23 | 2004-11-23 | Device for temperature compensation in a microwave filter or microwave oscillator with auxiliary coil |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004056505B4 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3927347C2 (en) * | 1988-09-12 | 1993-12-16 | Tektronix Inc | Design of magnets for ferrimagnetic resonators |
US5294899A (en) * | 1992-07-29 | 1994-03-15 | Hewlett-Packard Company | YIG-tuned circuit with rotatable magnetic polepiece |
DE3732794C2 (en) * | 1986-09-29 | 1997-04-24 | Sony Corp | Ferromagnetic resonator with a temperature compensation device using precoded compensation data |
-
2004
- 2004-11-23 DE DE200410056505 patent/DE102004056505B4/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3732794C2 (en) * | 1986-09-29 | 1997-04-24 | Sony Corp | Ferromagnetic resonator with a temperature compensation device using precoded compensation data |
DE3927347C2 (en) * | 1988-09-12 | 1993-12-16 | Tektronix Inc | Design of magnets for ferrimagnetic resonators |
US5294899A (en) * | 1992-07-29 | 1994-03-15 | Hewlett-Packard Company | YIG-tuned circuit with rotatable magnetic polepiece |
Also Published As
Publication number | Publication date |
---|---|
DE102004056505B4 (en) | 2008-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition |